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By Jennifer Saba and Jim FinkleNEW YORK/BOSTON (Reuters) - A growing number of U.S. companies, including MillerCoors and AIG, are stepping up the battle against online ad fraud by demanding proof that their ads have been seen by real people instead of computers hijacked by cybercriminals.Spurred by a warning in December by the Association of National Advertisers (ANA) that businesses ...

By Liana B. Baker, Olivia Oran and Jim FinkleNEW YORK/BOSTON (Reuters) - Rapid7, LogRythm and Mimecast are joining a growing list of cybersecurity firms planning to go public in 2015 to capitalize on investor interest following a spate of hacker attacks, according to people familiar with the matter.Shares of publicly traded cybersecurity firms have outperformed the market in recent months, ...

(Reuters) - Upscale jeweler Tiffany & Co reported a 1 percent fall in quarterly sales, hurt by a stronger dollar and weak demand during the holiday shopping season.The company reported net income of $196.2 million, or $1.51 per share, in the fourth quarter ended Jan. 31, compared with a loss of $103.6 million, or 81 cents per share, a year ...